Assuming it worked before I'm guessing this issue was introduced with some more recent Beaker release. In any case, looking at the Beaker source indicates that ubuntu-server-12.04-amd64 should indeed be ubuntu-12.04-amd64.
With this change, the tests pass for me using Beaker 2.40.
Running the acceptance tests I ran into the following error:
Which lead me to this post: https://groups.google.com/forum/#!topic/puppet-users/A7UrwTRCzsU
Assuming it worked before I'm guessing this issue was introduced with some more recent Beaker release. In any case, looking at the Beaker source indicates that
ubuntu-server-12.04-amd64
should indeed beubuntu-12.04-amd64
.With this change, the tests pass for me using Beaker 2.40.